2019948640

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{307919}}^1$

素因数の和:307975

約数の個数: 48

約数和(自身を含む): 4888537920

約数和(自身を除く): 2868589280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 307919, 615838, 1231676, 1539595, 2463352, 3079190, 4926704, 6158380, 9853408, 12316760, 12624679, 24633520, 25249358, 49267040, 50498716, 63123395, 100997432, 126246790, 201994864, 252493580, 403989728, 504987160, 1009974320, 2019948640]

約数ペア:

[(1, 2019948640), (2, 1009974320), (4, 504987160), (5, 403989728), (8, 252493580), (10, 201994864), (16, 126246790), (20, 100997432), (32, 63123395), (40, 50498716), (41, 49267040), (80, 25249358), (82, 24633520), (160, 12624679), (164, 12316760), (205, 9853408), (328, 6158380), (410, 4926704), (656, 3079190), (820, 2463352), (1312, 1539595), (1640, 1231676), (3280, 615838), (6560, 307919)]